28845656 has 32 divisors (see below), whose sum is σ = 62000640. Its totient is φ = 12324768.

The previous prime is 28845653. The next prime is 28845679. The reversal of 28845656 is 65654882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28845653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25601 + ... + 26703.

It is an arithmetic number, because the mean of its divisors is an integer number (1937520).

Almost surely, 2^28845656 is an apocalyptic number.

It is an amenable number.

28845656 is an abundant number, since it is smaller than the sum of its proper divisors (33154984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28845656 is a wasteful number, since it uses less digits than its factorization.

28845656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583 (or 1579 counting only the distinct ones).

The product of its digits is 460800, while the sum is 44.

The square root of 28845656 is about 5370.8152081411. The cubic root of 28845656 is about 306.6856625494.

The spelling of 28845656 in words is "twenty-eight million, eight hundred forty-five thousand, six hundred fifty-six".